component
MF-USMF110-2
Public Made by Adomby adom
BOURNS Resettable Fuses, 1210. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownMF-USMF110-2
BOURNS · Resettable Fuses · 1210
MF-USMF110-2 from BOURNS, in a 1210. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1 | passive | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BOURNS |
| Package | 1210 |
| Category | Circuit Protection |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Maximum voltage (V max.) | V max. | 6 | Volts | 1 | |||
| Maximum interrupt current (I max.) | I max. | 40 | Amps | 1 | |||
| Minimum resistance (RMin.) | RMin. | 0.05 | Ohms | in still air at 23 °C | 1 | ||
| Maximum resistance (R1Max.) | R1Max. | 0.21 | Ohms | in still air at 23 °C | 1 | ||
| Maximum time to trip | 1 | Seconds | at 23 °C | 1 | |||
| Hold current (Ihold) | Ihold | 1.1 | Amperes | at 23 °C | 1 | ||
| Trip current (Itrip) | Itrip | 2.2 | Amperes | at 23 °C | 1 | ||
| Tripped power dissipation | 0.6 | Watts | at 23 °C | 1 | |||
| Operating temperature | -40 | 85 | °C | 1 | |||
| Passive aging resistance change | -5 | 5 | % | +85 °C, 1000 hours; typical resistance change | 1 | ||
| Humidity aging resistance change | -5 | 5 | % | +85 °C, 85 % R.H. 1000 hours; typical resistance change | 1 | ||
| Thermal shock resistance change | -10 | 10 | % | +85 °C to -40 °C, 20 times; typical resistance change | 1 | ||
| Recommended storage temperature | 40 | °C | recommended storage, max | 2 | |||
| Recommended storage humidity | 70 | % RH | recommended storage, max | 2 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | gold | Terminal material: Electroless Ni under immersion Au | 2 |
CAD (KiCad official)
- Symbol:
MF-USMF110-2 - Footprint:
Fuse:Fuse_1210_3225Metric - 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files:
mf-usmf110-2-etched.step/mf-usmf110-2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mf-usmf110-2.step/mf-usmf110-2.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BOURNS datasheet (4 pp, sha256
74014e5b17460aca, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal convention(convention), consensusoff(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).